Alright, let's work through 85664968 times 85081246 step by step
85664968 × 85081246 = 85081246 × (85664968)
+ 85081246 × 8 that equals 680649968
+ 85081246 × 60 producing 5104874760
+ 85081246 × 900 that equals 76573121400
+ 85081246 × 4000 producing 340324984000
+ 85081246 × 60000 resulting in 5104874760000
+ 85081246 × 600000 that results in 51048747600000
+ 85081246 × 5000000 that equals 425406230000000
+ 85081246 × 80000000 giving us 6806499680000000

= 7288482215990128
